ECD SYSTEM > BASIC INSPECTION

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HINT:
When a malfunction cannot be confirmed by the DTC check, troubleshooting should be performed on all circuits that are possible causes of the problem. However, in most cases, performing the basic engine check shown below can help you find the problem quickly and efficiently. Always perform this check first when troubleshooting the engine.



1.CHECK BATTERY VOLTAGE

    NOTICE:
    Perform the battery voltage check with the engine stopped and ignition switch OFF.

    Standard voltage:
    -
    		OK
    		NG
    Voltage
    		11 V or more
    		Less than 11 V



NG.
CHARGE OR REPLACE BATTERY
OK


2.CHECK IF ENGINE WILL CRANK


    		NG.
    PROCEED TO PROBLEM SYMPTOMS TABLE
    OK


    3.CHECK AIR FILTER

    1. Visually check that the air filter is not excessively contaminated with dirt or oil.



    		NG.
    CLEAN OR REPLACE AIR FILTER
    OK


    4.CHECK FUEL QUALITY

    1. Check that only diesel fuel is used.

    2. Check that the fuel does not contain any impurities.



    		NG.
    REPLACE FUEL
    OK


    5.CHECK FUEL FOR AIR


      		NG.
      BLEED FUEL OF AIR
      OK


      6.CHECK FUEL PIPES AND HOSES

      1. Check that the fuel pipes and fuel hoses are not blocked, damaged, disconnected or bent.



      		NG.
      REPAIR OR REPLACE
      OK


      7.CHECK FUEL FILTER FOR BLOCKAGE


        		NG.
        REPAIR OR REPLACE
        OK


        8.CHECK ENGINE OIL


          		NG.
          ADD OR REPLACE
          OK


          9.CHECK ENGINE COOLANT


            		NG.
            ADD OR REPLACE ENGINE COOLANT
            OK


            10.CHECK IDLING SPEED AND MAXIMUM SPEED


              		NG.
              REPLACE SUPPLY PUMP ASSEMBLY
              OK


              11.CHECK DIAGNOSTIC CIRCUIT


                		NG.
                REPAIR OR REPLACE
                OK


                12.CHECK VACUUM PUMP


                  		NG.
                  REPAIR OR REPLACE VACUUM PUMP
                  OK

                  PROCEED TO PROBLEM SYMPTOMS TABLE